Control circuit for an electromagnetic valve, gas burning system, method for monitoring a switching state of an electromagnetic valve and method for operating a gas burning system

In an assembly including:

• an electromagnetic valve having a magnetic coil, a valve element and a movable element coupled to the valve element, the magnetic coil, when excited, conveying the movable element in one direction for moving the valve element from an initial position into an active position;
• a control circuit for the electromagnetic valve, the control circuit comprising:
• a current source for selectively supplying current to the magnetic coil of the electromagnetic valve;
• a measuring device for measuring at least one of a voltage level of the magnetic coil or a current level through the magnetic coil;
• a monitoring unit connected to the measuring device, said monitoring unit configured to establish a switching state of the electromagnetic valve corresponding to the position of the valve element based on an intended current supply state of the current source and at least one of a current or voltage characteristic measured by said measuring device;
• said monitoring unit configured to infer a movement of the movable element of the electromagnetic valve when a signal peak is detected by said measuring device;
• and
• said monitoring unit configured to determine a fault state of at least one of the current supply or of the electromagnetic valve based on the detection of a signal peak in the measured current or voltage characteristic during an intended continuing current supply to the magnetic coil.